Finding the Fourth Proportional to 65,749, 98,493.18 and 30,640.36

Step by Step Solution

1. Step 1: Write the proportion equation
   65,749 : 98,493.18 = 30,640.36 : x
2. Step 2: Convert to fraction form
   65,749/98,493.18 = 30,640.36/x
3. Step 3: Cross multiply
   65,749x = 98,493.18 × 30,640.36
4. Step 4: Simplify right side
   65,749x = 3,017,866,492.74
5. Step 5: Solve for x
   x = 3,017,866,492.74/65,749
6. Step 6: Final answer
   x = 45,899.81